Is it possible for dislocations to self-lock after high-pressure torsion?

A. V. Plotnikov; B. A. Greenberg; M. A. Ivanov; V. P. Pilyugin; T. P. Tolmachev; O. V. Antonova; A. M. Patselov

doi:10.1134/S0031918X17080117

Is it possible for dislocations to self-lock after high-pressure torsion?

Authors: Plotnikov A.V.¹, Greenberg B.A.¹, Ivanov M.A.², Pilyugin V.P.¹, Tolmachev T.P.¹, Antonova O.V.¹, Patselov A.M.¹
Affiliations:
1. Mikheev Institute of Metal Physics, Ural Branch
2. Kurdyumov Institute of Metal Physics
Issue: Vol 118, No 8 (2017)
Pages: 802-809
Section: Strength and Plasticity
URL: https://journals.rcsi.science/0031-918X/article/view/167180
DOI: https://doi.org/10.1134/S0031918X17080117
ID: 167180

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Abstract

The evolution of the dislocation structure of the intermetallic compound Ni₃Ge upon high-pressure torsion has been investigated. It has been determined that, under certain conditions, subsequent heating without loading leads to the self-locking of dislocations, while in other cases, this does not take place. The role played by the lattice distortions that arise under torsion is emphasized.